Software IP interface configuration task list 129SmartWare Software Configuration Guide 11 • IP interface configurationSmartWare ICMP message processing offers two options for host route redirects:• accept—accepts ICMP redirect messages• send—sends ICMP redirect messagesMode: InterfaceExample: ICMP redirect messagesThe following example shows how to configure ICMP messages processing to accept ICMP redirect messageson the IP interface lan. Use the following commands in IP context configuration mode.SN(ctx-ip)[router]#interface lanSN(if-ip)[lan]#icmp redirect acceptRouter advertisement broadcast messageThis message configures the behavior of the router when receiving an ICMP router solicitation message, anddetermines if the router shall send periodic ICMP router advertisement messages or not.By default, ICMP router advertisement messages are sent, either as a reply to ICMP router solicitation mes-sages or periodically. If the feature is disabled, ICMP router advertisement messages are not sent in any case,neither as a reply to ICMP router solicitation messages nor periodically.Mode: InterfaceExample: Router advertisement broadcast messageThe following example shows how to enable sending router advertisement broadcast messages on IP interfacelan. Use the following commands in IP context configuration mode.*SN(ctx-ip)[router]#interface lanSN(if-ip)[lan]#icmp router-discoveryDefining the MTU and MSS of the interfaceAll interfaces have a default MTU packet size. You can adjust the IP MTU size so that the SmartWare applica-tion software will fragment any IP packet that exceeds the MTU set for an interface. The default MTU packetsize is set to 1500 for an interface. In cases where fragmentation is not allowed along the IP connection, forcinga reduction of the MSS (maximum segment size) is the only viable solution.Step Command Purpose1node(ctx-ip)[router]#interfacename Selects the interfacename for ICMP mes-sage processing configuration2node(if-ip)[name]#icmp redirect { accept | send} Enables to send or accept ICMP redirectmessagesStep Command Purpose1node(ctx-ip)[router]#interfacename Selects the interfacename for ICMP message pro-cessing configuration2node(if-ip)[name]# icmp router-discovery Enables to send router advertisement broadcastmessages
